Coleman Mach AC Filter

[Sandridge4]

Has anyone replaced the OEM filters in their ac units? We are full-time and wash ours regularly but am beginning to question how long they will last. I have found several options for replacement filters but they appear to be substantially thicker. With the extra thickness of the replacements I imagine they would do a much better job of filtering dust and dirt out but question whether that will have an undesirable effect on the airflow and cooling of the unit. Anyone have any experience with replacements?

[howson]

Has anyone replaced the OEM filters in their ac units? We are full-time and wash ours regularly but am beginning to question how long they will last. I have found several options for replacement filters but they appear to be substantially thicker. With the extra thickness of the replacements I imagine they would do a much better job of filtering dust and dirt out but question whether that will have an undesirable effect on the airflow and cooling of the unit. Anyone have any experience with replacements?

Only thread I can remember is this one where they changed it in a Furrion. Spoiler alert: it didn't go well. https://gdrvowners.com/forum/operati...-media-upgrade

[Sandridge4]

Only thread I can remember is this one where they changed it in a Furrion. Spoiler alert: it didn't go well. https://gdrvowners.com/forum/operati...-media-upgrade

Thank you!! I was afraid of that issue. Guess I’ll stick with the OEM replacements.

[pengle]

Has anyone replaced the OEM filters in their ac units? We are full-time and wash ours regularly but am beginning to question how long they will last. I have found several options for replacement filters but they appear to be substantially thicker. With the extra thickness of the replacements I imagine they would do a much better job of filtering dust and dirt out but question whether that will have an undesirable effect on the airflow and cooling of the unit. Anyone have any experience with replacements?

We have a Honeywell HEPA air filter. It has a pre-filter. We take a single sheet of the pre-filter and I cut it to replace the OEM filters in our two AC units.

[plastictires]

I haven't used these but they are on my list of filters I think I would change to.

[pengle]

I haven't used these but they are on my list of filters I think I would change to.

SO...
The RVAir filters come out to $11 per side of the Air Conditioner.
The "Honeywell" filters cost $23 for a pack of 4 pieces ((17" x 14") and I can get 8 sides out of those 4 pieces for a cost of $3 per side.
It DOES take me about a minute to cut each one. I have one of the old OEM plastic filters as a template and just cut around it.

[Guest]

Many folks do not realize that the air conditioner is designed around the OEM filters where a certain airflow is needed to prevent the evaporator from freezing up. Not sure if there is a MERV rating on the OEM filters but it would be best to stay close to the rating of the original filter element.

As the MERV rating increases, so does the resistance in airflow.

https://www.epa.gov/indoor-air-quali...at-merv-rating

https://www.airfilterusa.com/resourc...ssure-drop-faq

Todays high MERV rated residential filters are pleated to maintain a low pressure drop and will not cause issues in general with airflow. The RV has no space for such a filter so a tightly formed filter will reduce airflow in most cases.

Jim